TDC1000
Overview
The TDC1000 is a fully integrated analog frontend (AFE) for ultrasonic sensing measurements of level, fluid identification/concentration, and proximity/ distance applications common in automotive, industrial, and consumer markets. When paired with an MSP430/C2000 MCU, power, wireless, and source code, TI provides the complete ultrasonic sensing solution.
- Measurement range: up to 8 ms
- Operating current: 1.8 µA (2 SPS)
- Transmitter channels TX1/TX2: - Supports single or dual-transducer application - Programmable excitation: 31.25 kHz to 4 MHz, up to 31 pulses
- Receiver channels RX1/RX2: - STOP cycle-to-cycle jitter: 50 psRMS - Low-noise and programmable gain amplifiers - Access to signal chain for external filter design - Programmable threshold comparator for echo qualification - Automatic channel swapping for differential Time-of-Flight (TOF) measurement - Programmable low power mode for long TOF measurements
- Temperature measurement - Interface to two PT1000/500 RTDs - RTD-to-RTD matching accuracy 0.02°CRMS
- Operating temperature range: -40°C to 125°C
